- ASomaclonal variation
- BHaploids
- CVirus-free plants
- DSlow-growing callus
Explanation:
In meristem culture, shoot apex is used as an explant that possesses meristematic cells that have the ability to divide continuously and thus do not carry a virus. Thus the plantlets produced from this culture are virus-free plants.
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$(1)$ Monarch butterfly and bird
$(2)$ Orchid and mango
$(3)$ Fish and flamingo
$(4)$ Calotropis and cattle
$(5)$ Cattle egret and grazing cattle
Statement $I:$Autoimmune disorder is a condition where body defense mechanism recognizes its own cells as foreign bodies.
Statement $II:$Rheumatoid arthritis is a condition where body does not attack self cells.
In the light of the above statements, choose the most appropriate answer from the options given below: